Determining longitudinal dispersion coefficients for submerged vegetated flow
Shucksmith, J. D., Boxall, J. B. and Guymer, Ian. (2011) Determining longitudinal dispersion coefficients for submerged vegetated flow. Water Resources Research, Vol.47 (Number 10). Article W10516. ISSN 0043-1397Full text not available from this repository.
Official URL: http://dx.doi.org/10.1029/2011WR010547
Prediction of the physical transport and mixing of pollutants or other soluble material is crucial for effective river management. Although well established methods exist which describe mixing processes in open channel flow, the presence of vegetation has a significant impact on mixing and few existing techniques account for this. To date, existing models which predict longitudinal dispersion coefficients in vegetated open channel flow have been derived and verified based on experiments conducted in simulated vegetation. This paper presents observations of longitudinal dispersion coefficients in a channel featuring living vegetation and tests against both an existing and a newly proposed model for longitudinal dispersion coefficient in submerged vegetated open channel flow. A model based on a mathematical technique of predicting dispersion in plain shear flow is shown to be capable of predicting longitudinal dispersion coefficients to within 20%.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering
|Divisions:||Faculty of Science > Engineering|
|Journal or Publication Title:||Water Resources Research|
|Publisher:||American Geophysical Union|
|Official Date:||18 October 2011|
|Number of Pages:||13|
|Page Range:||Article W10516|
|Access rights to Published version:||Open Access|
|Funder:||Engineering and Physical Sciences Research Council (EPSRC) Doctoral Training Award|
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